Automatic Cylindrical Battery PACK Spot Welding Machine

Automatic Cylindrical Battery PACK Spot Welding Machine

SPECIFICATIONS

Core Technical Specifications

Industrial Automatic Welding for Cylindrical Battery PACK Assembly

The AOAO-SW-8000A-500 Automatic Single Side Welding Machine is designed for fast, stable and repeatable welding of cylindrical Lithium battery packs. It is widely used in 18650 / 21700 battery module production, energy storage packs, power tool batteries and EV battery sub-assemblies.

With a servo-driven positioning system, real-time current monitoring, and a water-cooled welding structure, this system delivers both high welding yield and consistent joint quality, even during long production runs.

This makes it suitable not only for pilot lines, but also for small and medium-scale mass production environments.

Why This Welding Machine Performs Better in Real Production

Unlike basic battery welders, AOAO-SW-8000A-500 is designed around industrial stability rather than just peak speed.

Stable Welding Pressure

The integrated water-cooling system keeps the welding head and pressure structure thermally stable.

This prevents pressure drift during continuous operation, which is a common cause of weak welds and electrode wear.

Real-Time Welding Quality Control

The system continuously monitors welding current.

If a false weld, weak weld, or explosive weld is detected, the machine triggers an alarm immediately, preventing defective packs from moving to the next process.

Fast, Simple Programming

The embedded controller and 7-inch HMI allow operators to create welding paths quickly.

Up to 99 welding programs can be stored, making it easy to switch between different battery layouts or cell types.

Designed for Cylindrical Cell PACK Layouts

This machine is optimized for common cylindrical battery formats such as:

● 18650

● 21700

● Similar cylindrical lithium cells

The standard fixture supports up to 450 pcs of 18650 cells per loading cycle, allowing efficient welding of medium-size battery modules.

With 560 mm (X) × 500 mm (Y) stroke, it covers most battery pack layouts used in energy storage, power tools, and light EV packs.

High-Speed Motion with Industrial Accuracy

The welding head is driven by a servo + stepping motor system combined with precision linear guide rails (HIWIN / TBI).

This ensures:

● Smooth acceleration and deceleration

● Accurate positioning

● Long-term mechanical stability

The maximum transmission speed reaches 1000 mm/s, allowing the system to maintain both speed and positioning accuracy even on dense welding patterns.

Production Efficiency

● Welding speed: 0.3 – 0.5 s per welding point

● Throughput: approx. 2,500 – 3,000 welding points per hour

● Loading capacity: up to 450 cylindrical cells (18650 standard)

This allows one operator to support a steady and predictable battery pack welding workflow.

Industrial-Grade Control and Components

All key components come from well-known industrial brands to ensure reliability and easy maintenance.

Operating Environment

The machine is built for factory conditions:

● Temperature: −30°C to 50°C

● Humidity: below 55% RH

● No strong electromagnetic interference

● No corrosive or dusty pollution

This allows stable operation in normal battery production workshops.

Why AOAO Battery Machines Are Used Worldwide

AOAO Battery Machinesare widely used by battery manufacturers, research institutes, and system integrators who require stable welding quality, traceable process control, and long-term reliability.

The AOAO-SW-8000A-500 is not designed as a low-end spot welder. It is built as a true battery PACK welding workstation that can grow with your production needs.

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